21725105

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2731}}^1$

素因数の和:2816

約数の個数: 16

約数和(自身を含む): 27407424

約数和(自身を除く): 5682319

約数列:

[1, 5, 37, 43, 185, 215, 1591, 2731, 7955, 13655, 101047, 117433, 505235, 587165, 4345021, 21725105]

約数ペア:

[(1, 21725105), (5, 4345021), (37, 587165), (43, 505235), (185, 117433), (215, 101047), (1591, 13655), (2731, 7955)]